Table 1 Statistical values (median, mean, one standard deviation (STD)) of (a) derived OHeff and stratospheric OHr for different mean age groups; (b) chlorine radical in the stratosphere during 2010–2015 (unit in 103 molecules cm−3); and (c) stratospheric OHr in the stratosphere during 2010–2015 (unit in 104 molecules cm−3)
(a) | |||||||
Mean age [day] | 0–100 | 100–200 | 200–400 | 400–500 | 500–700 | 700–1100 | |
OHeff derived from CH3Cl ( × 105 molecules cm−3) | Median | 9.9 | 2.2 | 1.4 | 1.8 | 1.6 | 2.2 |
Mean | 10.9 | 2.5 | 1.6 | 1.9 | 1.8 | 2.1 | |
STD | 9.6 | 2.0 | 1.2 | 1.3 | 1.2 | 0.6 | |
OHeff derived from CH4 ( × 105 molecules cm−3) | Median | 26.3 | 4.3 | 2.5 | 2.9 | 3.5 | 4.5 |
Mean | 31.4 | 4.5 | 2.7 | 3.0 | 3.5 | 4.4 | |
STD | 14.1 | 3.4 | 1.6 | 1.7 | 1.4 | 1.1 | |
Stratospheric OHr ( × 104 molecules cm−3) | Median | 13.0 | 8.8 | 9.7 | 9.0 | ||
Mean | 12.8 | 10.3 | 11.1 | 9.9 | |||
STD | 7.6 | 7.5 | 8.1 | 7.0 | |||
(b) | ||||||
2010 | 2011 | 2012 | 2013 | 2014 | 2015 | |
Median | 10.4 | 11.6 | 12.6 | 6.9 | 8.2 | 9.7 |
Mean | 11.7 | 10.9 | 12.1 | 7.3 | 10.0 | 11.3 |
STD | 6.9 | 4.9 | 6.8 | 5.1 | 5.7 | 6.4 |
(c) | ||||||
2010 | 2011 | 2012 | 2013 | 2014 | 2015 | |
Median | 9.2 | 8.2 | 11.9 | 12.8 | 5.4 | 9.3 |
Mean | 11.8 | 9.5 | 12.1 | 12.4 | 8.5 | 9.6 |
STD | 7.8 | 7.9 | 8.2 | 7.9 | 6.9 | 5.1 |